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NOTE
If the MPLS-TP network is severely congested and the priority of CCMs is low, CCMs cannot be sent.
Therefore, a proper priority must be configured for CCMs based on network conditions.
3.
Run the
cc send enable
command on the MEP to enable it to send continuity check
(CC) or connectivity verification (CV) packets.
4.
Run the
cc send enable
command on the RMEP to enable it to send CC/CV packets.
5.
Run the
cc receive enable
command on the MEP to enable it to receive CC/CV packets.
6.
Run the
cc receive enable
command on the RMEP to enable it to receive CC/CV
packets.
7.
(Optional) Run the
lost-measure
dual-ended
loss-ratio
{
threshold1
threshold1-
value
|
threshold2
threshold2-value
} command to set an alarm threshold for dual-ended
frame LM.
8.
Run the
lost-measure dual-ended enable
command to enable dual-ended frame LM.
----End
9.4.6 (Optional) Configuring Frame DM for a PW
This section describes how to configure one-way or two-way delay measurement (DM) to collect
reliability statistics of a pseudo wire (PW) built over a bidirectional label switched path (LSP).
Context
Frame DM is a performance monitoring function provided by multiprotocol label switching
transport profile (MPLS-TP). Delay variation (jitter) can be calculated based on delay
information. Two DM modes are supported:
l
One-way frame DM: In a point-to-point maintenance entity (ME), a maintenance entity
group end point (MEP) sends DM packets to its remote MEP (RMEP) to perform one-way
frame DM.
NOTE
If the clocks of the two MEPs are synchronous, both one-way and two-way frame DM can be performed.
If the clocks of the two MEPs are asynchronous, only two-way frame DM can be performed.
l
Two-way frame DM: In a point-to-point ME, a MEP sends Delay Measurement Messages
(DMMs) to its RMEP and receives Delay Measurement Replies (DMRs) from the RMEP
to perform two-way frame DM.
The differences between one-way and two-way frame DM functions are listed in
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
9 MPLS-TP OAM Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
946